2.3. Water sampling Surface water samples were collected from 10 basins in the Gum River, Korea without headspace in 100 mL brown glass bottles containing 0.1 mL of 0.5 M NaOH.
2.3. Water samplingSurface water samples were collected from 10 basins in the Gum River, Korea without headspace in 100 mL brown glass bottles containing 0.1 mL of 0.5 M NaOH.